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Pesticides Experts


Thomas N. Jordan
Professor and Extension specialist, weed science

(765) 494-4629


Has conducted research in environmentally sound weed control practices for agronomic crops. Expertise in herbicides, weed control, herbicide safety, sustainable agriculture, alternative weed control practices, tillage practices and weed control.

Stephen B. Lovejoy
Professor, agricultural and environmental policy

(765) 494-4245; home: (317) 497-3226


Is a national expert on water quality, sustainable agriculture, wetlands issues, and agricultural production and environmental quality. Work includes analysis of water quality issues and public opinion on environmental issues.

Dave E. Scott
Pesticide administrator, Office of the Indiana State Chemist

(765) 494-1583

Chairman of the Indiana Ground Water Task Force subcommittee on agricultural chemicals. Past president of the Association of Structural Pest Control Regulatory Officials. Is secretary for Indiana Pesticide Review Board. The state chemist's office is the lead pesticide regulatory agency in the state.

Stephen C. Weller
Professor, horticulture

(765) 494-1333


Has expertise in weed science, with emphasis on weed management systems in horticulture crops and the biology of weeds. Conducts research on methods of weed control that employ reduced herbicide use, such as ground covers and intercropping, and understanding the biology of weeds.

Fred Whitford
Coordinator, Purdue Pesticide Program

(765) 494-4566; home: (317) 743-3206


Runs the certified pesticide applicator training program at Purdue. Shows farmers and others how to correctly apply pesticides to minimize risks to the environment and personal health. Also does a number of education and demonstration programs for industry and consumers.


David B. Mengel
Professor and Extension specialist, agronomy

(765) 494-4801


Has expertise in environmental soil science and plant nutrient management. Researches reduced rates of nitrogen application vs. crop yield, leading to lower recommendations for total application.

Integrated pest management

Gerald E. Brust
Integrated Pest Management specialist

Southwest Purdue Agriculture Program

(812) 886-0198; home: (812) 886-9905


Oversees the first integrated pest management program for melon crops in the Midwest. Responsible for establishing innovative research and Extension approaches for pest management of vegetable and field crops in southwestern Indiana. Has reduced insecticide applications by an average of 55 percent on the corn crop and 65 percent in 1992 season on vegetable and melon acres, saving melon growers in the program an average of $3,000 each. Research also includes developing thresholds for the major pests of cucurbits, tomatoes, peppers and potatoes.

Rich Edwards
Integrated Pest Management program coordinator

(765) 494-4562


Estimates that 90 percent of Indiana farmers are using some aspect of integrated pest management, such as scouting, relying on economic thresholds for treatment decisions and other core IPM techniques. "The question has gone from 'Which product do I use?' to 'Do I need to use a product at all?'" he says. Is an international leader in IPM and helped develop IPM guides for field crops, seed corn and popcorn. Consults on international pest management problems.

John L. Obermeyer
Integrated Pest Management program supervisor, entomology

(765) 494-4563


Conducts training and disseminates research on IPM practices. Evaluates and implements new IPM technologies. Helped develop IPM guides for field crops, seed corn and popcorn. Advises producers and agribusiness employees on technical and cultural methods that avoid or reduce pesticide applications by adopting field scouting and implementing alternative control strategies.

Pesticides and food

Wilella D. Burgess
Extension specialist, foods and nutrition

Coordinator, food safety education project

(765) 494-8186; home: (317) 474-7216


Co-author of Purdue Cooperative Extension publication, "The Pesticide Paradox." Helps consumers put food safety risks into perspective. Teaches consumers how to reduce pesticide risks through proper preparation techniques and by eating a variety of foods.

April C. Mason
Professor and Extension specialist, foods and nutrition

(765) 494-8539; home: (317) 463-1550


Currently works on three national food safety education grants. Is responsible for developing curricula and distance education materials for youth and adult audiences. Conducts research on mineral availability from plant products. Member of the Purdue Cooperative Extension Service Task Force on Food Safety. Is co-author of the Purdue Cooperative Extension Publication "The Pesticide Paradox." Teaches consumers how to reduce pesticide risks through food preparation techniques and by eating a wide variety of foods.